Greenhouse Polycarbonate:

Some say that Greenhouse polycarbonate is the perfect material for covering a greenhouse; twin wall polycarbonate retains heat, diffuses sunlight and reduces the risk of scorching plants, and comes in different thicknesses to reduce the loss of heat during the lower night temperatures.

One of the greatest things about polycarbonate glazing is that it is so strong - until greenhouse polycarbonate came into the picture, glass breakage was a major safety hazard and an incredible cost, as well as hassle for hobby greenhouse growers.

Insulation:

Polycarbonate is the most advanced insulating panel developed for use in greenhouses. This is especially so now that most commercial polycarbonate is sold with UV protective coatings to slow the breakdown of the panels. Believe it or not it is the sun's rays that do the most damage.

Twin wall polycarbonate is pretty standard in the industry; however triple wall polycarbonate sheets are also available. These sheets are thicker and offer better insulation. Going with a thicker sheet, and more walls (like triple wall), means that what you gain in insulation you lose in its ability to transfer the greatest amount of light.

Superior to glass? (but not as clear a view):

These glazing’s are UV treated, stronger and more resistant to impact than other glazing materials. Another advantage of polycarbonate is its long lifespan.

One of the biggest advantages of polycarbonate is its impact strength; it is 200 times stronger than glass and will not shatter.

Virtually unbreakable, these panels provide effective insulation without creating hot spots experienced with glass greenhouses and are protected with a UV coating to prevent discoloration.

Polycarbonate sheet is also a lot lighter than glass. Often when building a greenhouse made of glass you may need the help of experience builders, since glass is so heavy and dangerous if it shatters. Polycarbonate sheets weigh only one-quarter the weight of greenhouse glass on a square-foot basis.